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Studying the impact of titanium dioxide nanoparticles on the expression of pivotal genes related to menthol biosynthesis and certain biochemical parameters in peppermint plants (Mentha Piperita L.).
Veleshkolaii, Fatemeh Ramzanpoor; Gerami, Mahyar; Younesi-Melerdi, Elham; Moshaei, Masoumeh Rezaei; Ghanbari Hassan Kiadeh, Saeed.
Afiliação
  • Veleshkolaii FR; Department of Horticulture, Sana Institute of Higher Education, Sari, Iran.
  • Gerami M; Department of Biology, Faculty of Sana Institute of Higher Education, Sari, Iran. Mahyar.gerami@yahoo.com.
  • Younesi-Melerdi E; Genetics and Agricultural Biotechnology Institute of Tabarestan, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.
  • Moshaei MR; Department of Biotechnology, Amol University of Special Modern Technologies (AUSMT), Amol, Iran. m.rezaeimbio@gmail.com.
  • Ghanbari Hassan Kiadeh S; Department of Biotechnology, Amol University of Special Modern Technologies (AUSMT), Amol, Iran.
BMC Plant Biol ; 24(1): 531, 2024 Jun 11.
Article em En | MEDLINE | ID: mdl-38862885
ABSTRACT

BACKGROUND:

This study examines the impact of titanium dioxide nanoparticles (TiO2NPs) on gene expression associated with menthol biosynthesis and selected biochemical parameters in peppermint plants (Mentha piperita L.). Menthol, the active ingredient in peppermint, is synthesized through various pathways involving key genes like geranyl diphosphate synthase, menthone reductase, and menthofuran synthase. Seedlings were treated with different concentrations of TiO2NPs (50, 100, 200, and 300 ppm) via foliar spray. After three weeks of treatment, leaf samples were gathered and kept at -70 °C for analysis.

RESULTS:

According to our findings, there was a significant elevation (P ≤ 0.05) in proline content at concentrations of 200 and 300 ppm in comparison with the control. Specifically, the highest proline level was registered at 200 ppm, reaching 259.64 ± 33.33 µg/g FW. Additionally, hydrogen peroxide and malondialdehyde content exhibited a decreasing trend following nanoparticle treatments. Catalase activity was notably affected by varying TiO2NP concentrations, with a significant decrease observed at 200 and 300 ppm compared to the control (P ≤ 0.05). Conversely, at 100 ppm, catalase activity significantly increased (11.035 ± 1.12 units/mg of protein/min). Guaiacol peroxidase activity decreased across all nanoparticle concentrations. Furthermore, RT-qPCR analysis indicated increased expression of the studied genes at 300 ppm concentration.

CONCLUSIONS:

Hence, it can be inferred that at the transcript level, this nanoparticle exhibited efficacy in influencing the biosynthetic pathway of menthol.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Titânio / Mentha piperita / Regulação da Expressão Gênica de Plantas / Nanopartículas / Mentol Idioma: En Revista: BMC Plant Biol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Irã

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Titânio / Mentha piperita / Regulação da Expressão Gênica de Plantas / Nanopartículas / Mentol Idioma: En Revista: BMC Plant Biol Assunto da revista: BOTANICA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Irã